Protective Frame for Portable Electronic Devices

1. A protective frame for portable electronic devices, said protective frame comprising: a main frame provided with a window and having a lower side formed with a recessed entry having two ends respectively formed as a blocking wall, a sliding groove cut in inner walls of three other sides except said lower side of said main frame; and a cover laid on said main frame and provided with an opening, an engaging projection protruding outward around three sides of said cover to slide in and engage with said sliding groove of said main frame and having two ends formed as blocking walls, and characterized by said main frame having at least one positioning projection symmetrically located on said recessed entry and separated by a groove, at least one recessed groove cut in an inner wall of said cover to correspond to said positioning projection of said main frame, a positioning projection formed at an end of each of said recessed grooves, an interlocking groove bored next to an outer edge of each of said positioning projections of said cover.

2. The protective frame for portable electronic devices as claimed in claim 1 , wherein said main frame is further provided with plural protecting cushions attached on an inner wall.